From owner-freebsd-fs@freebsd.org Tue Aug 28 13:10:38 2018 Return-Path: Delivered-To: freebsd-fs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 8074B108BB73 for ; Tue, 28 Aug 2018 13:10:38 +0000 (UTC) (envelope-from lev@FreeBSD.org) Received: from onlyone.not-for.work (onlyone.not-for.work [IPv6:2a01:4f8:201:6350::2]) by mx1.freebsd.org (Postfix) with ESMTP id E82668318A for ; Tue, 28 Aug 2018 13:10:37 +0000 (UTC) (envelope-from lev@FreeBSD.org) Received: from [192.168.23.186] (unknown [89.113.128.32]) (Authenticated sender: lev@serebryakov.spb.ru) by onlyone.not-for.work (Postfix) with ESMTPSA id 87807C4; Tue, 28 Aug 2018 16:10:36 +0300 (MSK) Reply-To: lev@FreeBSD.org Subject: Re: ZFS (ARC) performance regression in r321610 To: Yamagi Burmeister Cc: freebsd-fs@freebsd.org, MacCrest@gmail.com References: <20180827154727.80f92fff9bbc931b37928d43@yamagi.org> <3c6f8c96-6ac9-7257-c8c0-8be2063a7c19@FreeBSD.org> <20180827182723.cd8ec6bac6448793b25ef91c@yamagi.org> <20180828105048.d5a4133c8a932eff900bd758@yamagi.org> <20180828110543.7cc7fa65a0e04e29a06a32b1@yamagi.org> From: Lev Serebryakov Openpgp: preference=signencrypt Autocrypt: addr=lev@FreeBSD.org; 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WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20180828110543.7cc7fa65a0e04e29a06a32b1@yamagi.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 28 Aug 2018 13:10:38 -0000 On 28.08.2018 12:05, Yamagi Burmeister wrote: >> ZFS on Linux exposes zfs_abd_scatter_enabled through a module >> parameter. What about turning it into a sysctl? Something like this: > > Ups, there sneaked an unrelated edit into the patch. New version here: I think, you need to create Phabricator review ("change") and push it HARD, or patch will be lost and never go to sources :-( -- // Lev Serebryakov